Essential Design Patterns Every React Developer Must Know

Design Patterns enable React developers to build scalable, maintainable, and robust applications using tested and trusted solutions. They encapsulate best practices and architectural blueprints that streamline development workflows and elevate the quality of coding solutions.

In this article, we’ll explore some common React design patterns, exploring their practical application, real-world instances, and key things to consider and remember.

Container/Presentational Components Pattern

Usage: To separate concerns between components that handle data fetching/state management (Container) and the components the handle UI rendering (Presentational)

Real World Example: Blog App

BlogArticlesContainer is responsible from fetching and storing the blog articles which then gets passed to BlogArticle.

Things To Know:

• Containers are often connected to Redux store or utilize useState and useEffect for state management.
• Presentational components solely focus on rendering UI based on props received from Containers.

React Hooks Pattern

Usage: React hooks provide a way to manage component logic and state in a more organized and concise manner within functional components.

Real World Example: Using the example above, we can isolate the fetching logic into its own hook

We replaced the useEffect logic in BlogArticlesContainer with useFetchBlogArticles

Things To Know:

• Hooks must be called at the top level of a functional component.
• Custom hooks allow you to reuse stateful logic across multiple components.

Provider Pattern

Usage: The Provider pattern involves using React’s Context API along with hooks to provide data or functionality to the entire component tree without having to pass props manually at every level.

Real World Example: Managing an apps theme

Things To Know:

• The Provider pattenr relies on React’s Context API, which allows you to pass data through the component tree without having to prop drill.
• The Provider components wraps around its children giving them access to its context values.
• The components that need access to the context values are also known as Consumers.
• Sometimes prop drilling is more appropriate if the data is only needed by a few components.